Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com> --- src/egl/drivers/dri2/egl_dri2.c | 238 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 238 insertions(+)
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c index 5302c0a..1ab6a82 100644 --- a/src/egl/drivers/dri2/egl_dri2.c +++ b/src/egl/drivers/dri2/egl_dri2.c @@ -34,6 +34,7 @@ #include <errno.h> #include <unistd.h> #include <xf86drm.h> +#include <drm_fourcc.h> #include <GL/gl.h> #include <GL/internal/dri_interface.h> #include <sys/types.h> @@ -1170,6 +1171,241 @@ dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx, return dri2_create_image(disp, dri_image); } +static EGLBoolean +dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs) +{ + unsigned i; + + /** + * The spec says: + * + * "Required attributes and their values are as follows: + * + * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels + * + * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified + * by drm_fourcc.h and used as the pixel_format parameter of the + * drm_mode_fb_cmd2 ioctl." + * + * * EGL_DMA_BUF_PLANE0_FD_EXT: The dma_buf file descriptor of plane 0 of + * the image. + * + * * EGL_DMA_BUF_PLANE0_OFFSET_EXT: The offset from the start of the + * dma_buf of the first sample in plane 0, in bytes. + * + * * EGL_DMA_BUF_PLANE0_PITCH_EXT: The number of bytes between the start of + * subsequent rows of samples in plane 0. May have special meaning for + * non-linear formats." + * + * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is + * incomplete, EGL_BAD_PARAMETER is generated." + */ + if (attrs->Width <= 0 || attrs->Height <= 0 || + !attrs->DMABufFourCC.IsPresent || + !attrs->DMABufPlaneFds[0].IsPresent || + !attrs->DMABufPlaneOffsets[0].IsPresent || + !attrs->DMABufPlanePitches[0].IsPresent) { + _eglError(EGL_BAD_PARAMETER, "attribute(s) missing"); + return EGL_FALSE; + } + + /** + * Also: + * + * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values + * specified for a plane's pitch or offset isn't supported by EGL, + * EGL_BAD_ACCESS is generated." + */ + for (i = 0; i < sizeof(attrs->DMABufPlanePitches) / + sizeof(attrs->DMABufPlanePitches[0]); ++i) { + if (attrs->DMABufPlanePitches[i].IsPresent && + attrs->DMABufPlanePitches[i].Value <= 0) { + _eglError(EGL_BAD_ACCESS, "invalid pitch"); + return EGL_FALSE; + } + } + + return EGL_TRUE; +} + +/* Returns the total number of file descriptors zero indicating an error. */ +static unsigned +dri2_check_dma_buf_format(const _EGLImageAttribs *attrs) +{ + switch (attrs->DMABufFourCC.Value) { + case DRM_FORMAT_RGB332: + case DRM_FORMAT_BGR233: + case DRM_FORMAT_XRGB4444: + case DRM_FORMAT_XBGR4444: + case DRM_FORMAT_RGBX4444: + case DRM_FORMAT_BGRX4444: + case DRM_FORMAT_ARGB4444: + case DRM_FORMAT_ABGR4444: + case DRM_FORMAT_RGBA4444: + case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_XRGB1555: + case DRM_FORMAT_XBGR1555: + case DRM_FORMAT_RGBX5551: + case DRM_FORMAT_BGRX5551: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_ABGR1555: + case DRM_FORMAT_RGBA5551: + case DRM_FORMAT_BGRA5551: + case DRM_FORMAT_RGB565: + case DRM_FORMAT_BGR565: + case DRM_FORMAT_RGB888: + case DRM_FORMAT_BGR888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_RGBX8888: + case DRM_FORMAT_BGRX8888: + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_RGBA8888: + case DRM_FORMAT_BGRA8888: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRX1010102: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_BGRA1010102: + case DRM_FORMAT_YUYV: + case DRM_FORMAT_YVYU: + case DRM_FORMAT_UYVY: + case DRM_FORMAT_VYUY: + /* There must be one and only one plane present */ + if (attrs->DMABufPlaneFds[0].IsPresent && + attrs->DMABufPlaneOffsets[0].IsPresent && + attrs->DMABufPlanePitches[0].IsPresent && + !attrs->DMABufPlaneFds[1].IsPresent && + !attrs->DMABufPlaneOffsets[1].IsPresent && + !attrs->DMABufPlanePitches[1].IsPresent && + !attrs->DMABufPlaneFds[2].IsPresent && + !attrs->DMABufPlaneOffsets[2].IsPresent && + !attrs->DMABufPlanePitches[2].IsPresent) + return 1; + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV21: + case DRM_FORMAT_NV16: + case DRM_FORMAT_NV61: + /* There must be two and only two planes present */ + if (attrs->DMABufPlaneFds[0].IsPresent && + attrs->DMABufPlaneOffsets[0].IsPresent && + attrs->DMABufPlanePitches[0].IsPresent && + attrs->DMABufPlaneFds[1].IsPresent && + attrs->DMABufPlaneOffsets[1].IsPresent && + attrs->DMABufPlanePitches[1].IsPresent && + !attrs->DMABufPlaneFds[2].IsPresent && + !attrs->DMABufPlaneOffsets[2].IsPresent && + !attrs->DMABufPlanePitches[2].IsPresent) + return 2; + break; + case DRM_FORMAT_YUV410: + case DRM_FORMAT_YVU410: + case DRM_FORMAT_YUV411: + case DRM_FORMAT_YVU411: + case DRM_FORMAT_YUV420: + case DRM_FORMAT_YVU420: + case DRM_FORMAT_YUV422: + case DRM_FORMAT_YVU422: + case DRM_FORMAT_YUV444: + case DRM_FORMAT_YVU444: + /* All three planes must be specified */ + if (attrs->DMABufPlaneFds[0].IsPresent && + attrs->DMABufPlaneOffsets[0].IsPresent && + attrs->DMABufPlanePitches[0].IsPresent && + attrs->DMABufPlaneFds[1].IsPresent && + attrs->DMABufPlaneOffsets[1].IsPresent && + attrs->DMABufPlanePitches[1].IsPresent && + attrs->DMABufPlaneFds[2].IsPresent && + attrs->DMABufPlaneOffsets[2].IsPresent && + attrs->DMABufPlanePitches[2].IsPresent) + return 3; + break; + default: + /* + * The spec says: + * + * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT + * attribute is set to a format not supported by the EGL, EGL_BAD_MATCH + * is generated." + */ + _eglError(EGL_BAD_MATCH, "invalid format"); + return 0; + } + + /** + * The spec says: + * + * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT + * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is + * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_* + * attributes are specified." + */ + _eglError(EGL_BAD_ATTRIBUTE, "invalid number of planes"); + + return 0; +} + +static _EGLImage * +dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx, + EGLClientBuffer buffer, const EGLint *attr_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + EGLint err; + _EGLImageAttribs attrs; + __DRIimage *dri_image; + unsigned num_fds; + unsigned i; + int fds[3]; + int pitches[3]; + int offsets[3]; + + /** + * The spec says: + * + * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the + * error EGL_BAD_PARAMETER is generated." + */ + if (buffer != NULL) { + _eglError(EGL_BAD_PARAMETER, "buffer not NULL"); + return NULL; + } + + err = _eglParseImageAttribList(&attrs, disp, attr_list); + if (err != EGL_SUCCESS) { + _eglError(err, "bad attribute"); + return NULL; + } + + if (!dri2_check_dma_buf_attribs(&attrs)) + return NULL; + + num_fds = dri2_check_dma_buf_format(&attrs); + if (!num_fds) + return NULL; + + for (i = 0; i < num_fds; ++i) { + fds[i] = attrs.DMABufPlaneFds[i].Value; + pitches[i] = attrs.DMABufPlanePitches[i].Value; + offsets[i] = attrs.DMABufPlaneOffsets[i].Value; + } + + dri_image = + dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen, + attrs.Width, attrs.Height, attrs.DMABufFourCC.Value, + fds, num_fds, pitches, offsets, + attrs.DMABufYuvColorSpaceHint.Value, + attrs.DMABufSampleRangeHint.Value, + attrs.DMABufChromaHorizontalSiting.Value, + attrs.DMABufChromaVerticalSiting.Value, + NULL); + + return dri2_create_image(disp, dri_image); +} + #ifdef HAVE_WAYLAND_PLATFORM /* This structure describes how a wl_buffer maps to one or more @@ -1364,6 +1600,8 @@ dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp, case EGL_WAYLAND_BUFFER_WL: return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list); #endif + case EGL_LINUX_DMA_BUF_EXT: + return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list); default: _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr"); return EGL_NO_IMAGE_KHR; -- 1.8.1.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev